Home / 86,506.78-119,379.45-50,689.66

Finding the Fourth Proportional to 86,506.78, 119,379.45 and 50,689.66

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Solution

The fourth proportional to 86,506.78, 119,379.45 and 50,689.66 is: 69,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,506.78 : 119,379.45 = 50,689.66 : x
  2. Step 2: Convert to fraction form
    86,506.78/119,379.45 = 50,689.66/x
  3. Step 3: Cross multiply
    86,506.78x = 119,379.45 × 50,689.66
  4. Step 4: Simplify right side
    86,506.78x = 6,051,303,731.49
  5. Step 5: Solve for x
    x = 6,051,303,731.49/86,506.78
  6. Step 6: Final answer
    x = 69,951.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.